M1.9 earthquake 21 km SSW of Ferndale, California

Magnitude

1.9 (md), micro

Local time

Tue, Sep 15, 1981, 10:24 PM PDT

UTC

1981-09-16 05:24:27 UTC

Depth

21.1 km (13.1 mi), shallow

Epicenter

40.409° N, 124.390° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.5 km horizontally, 0.4 km in depth

Depth from

From location

Station coverage gap

255°, poorly surrounded by stations

Stations used

8

• Ferndale, CaliforniaPopulation 1,369. Forecast21 kmSSW
• Fortuna, CaliforniaPopulation 12,000. Forecast29 kmSW
• Chico, CaliforniaPopulation 121,345. Forecast230 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast892 kmNW

After

1. 2.837 km SW of Ferndale, CaliforniaWed, Sep 16, 11:49 AM PDT · 16442 days ago · 27 km deep · 17 km away
2. 2.433 km SW of Ferndale, CaliforniaWed, Sep 16, 7:39 PM PDT · 16442 days ago · 26 km deep · 12 km away
3. 1.935 km SSW of Ferndale, CaliforniaWed, Sep 16, 8:05 PM PDT · 16442 days ago · 25 km deep · 14 km away
4. 2.111 km WSW of Scotia, CaliforniaWed, Sep 16, 8:28 PM PDT · 16442 days ago · 30 km deep · 15 km away
5. 2.160 km W of Ferndale, CaliforniaThu, Sep 17, 5:05 AM PDT · 16441 days ago · 15 km deep · 51 km away
6. 1.69 km SSE of Blue Lake, CaliforniaThu, Sep 17, 6:55 AM PDT · 16441 days ago · 26 km deep · 59 km away
7. 1.837 km SW of Ferndale, CaliforniaThu, Sep 17, 8:07 AM PDT · 16441 days ago · 27 km deep · 17 km away
8. 1.819 km SW of Scotia, CaliforniaThu, Sep 17, 11:41 AM PDT · 16441 days ago · 31 km deep · 15 km away
9. 1.937 km SW of Ferndale, CaliforniaThu, Sep 17, 2:52 PM PDT · 16441 days ago · 28 km deep · 17 km away
10. 1.914 km S of Scotia, CaliforniaFri, Sep 18, 2:25 AM PDT · 16441 days ago · 31 km deep · 23 km away
11. 1.710 km W of Scotia, CaliforniaFri, Sep 18, 3:15 AM PDT · 16441 days ago · 22 km deep · 16 km away
12. 1.73 km SE of Scotia, CaliforniaFri, Sep 18, 9:07 AM PDT · 16440 days ago · 26 km deep · 28 km away
13. 3.337 km SW of Ferndale, CaliforniaFri, Sep 18, 4:34 PM PDT · 16440 days ago · 28 km deep · 17 km away
14. 2.117 km WNW of Indianola, CaliforniaFri, Sep 18, 8:59 PM PDT · 16440 days ago · 24 km deep · 38 km away
15. 1.749 km WSW of Ferndale, CaliforniaSat, Sep 19, 5:19 AM PDT · 16439 days ago · 5 km deep · 32 km away
16. 1.726 km WSW of Ferndale, CaliforniaSat, Sep 19, 5:42 AM PDT · 16439 days ago · 25 km deep · 13 km away
17. 2.333 km SW of Ferndale, CaliforniaSat, Sep 19, 9:10 AM PDT · 16439 days ago · 28 km deep · 14 km away
18. 2.045 km SW of Ferndale, CaliforniaSat, Sep 19, 10:36 PM PDT · 16439 days ago · 24 km deep · 27 km away
19. 2.028 km SW of Scotia, CaliforniaSun, Sep 20, 12:47 AM PDT · 16439 days ago · 8 km deep · 17 km away
20. 1.50 km E of Ferndale, CaliforniaMon, Sep 21, 12:11 AM PDT · 16438 days ago · 5 km deep · 22 km away
21. 3.435 km SSW of Ferndale, CaliforniaMon, Sep 21, 4:21 AM PDT · 16437 days ago · 12 km deep · 14 km away
22. 2.641 km SW of Ferndale, CaliforniaMon, Sep 21, 6:11 PM PDT · 16437 days ago · 26 km deep · 22 km away
23. 3.336 km SW of Ferndale, CaliforniaMon, Sep 21, 11:01 PM PDT · 16437 days ago · 27 km deep · 16 km away
24. 2.340 km SW of Ferndale, CaliforniaTue, Sep 22, 2:31 AM PDT · 16437 days ago · 28 km deep · 21 km away
25. 1.941 km SW of Ferndale, CaliforniaThu, Sep 24, 6:23 AM PDT · 16434 days ago · 30 km deep · 22 km away
26. 3.041 km SW of Ferndale, CaliforniaSat, Sep 26, 9:07 AM PDT · 16432 days ago · 20 km deep · 23 km away
27. 3.243 km WNW of Shelter Cove, CaliforniaSat, Sep 26, 1:27 PM PDT · 16432 days ago · 0 km deep · 31 km away
28. 2.118 km WSW of Scotia, CaliforniaSat, Sep 26, 2:45 PM PDT · 16432 days ago · 30 km deep · 8 km away
29. 2.034 km SW of Ferndale, CaliforniaSat, Sep 26, 5:56 PM PDT · 16432 days ago · 30 km deep · 13 km away
30. 1.630 km SSW of Ferndale, CaliforniaSun, Sep 27, 1:37 AM PDT · 16432 days ago · 32 km deep · 9 km away
31. 2.337 km SW of Ferndale, CaliforniaSun, Sep 27, 4:40 AM PDT · 16431 days ago · 26 km deep · 17 km away
32. 1.632 km SW of Ferndale, CaliforniaSun, Sep 27, 4:43 AM PDT · 16431 days ago · 34 km deep · 12 km away
33. 2.936 km SW of Ferndale, CaliforniaSun, Sep 27, 1:27 PM PDT · 16431 days ago · 23 km deep · 16 km away
34. 1.540 km SW of Ferndale, CaliforniaSun, Sep 27, 5:09 PM PDT · 16431 days ago · 24 km deep · 20 km away
35. 2.137 km SW of Ferndale, CaliforniaMon, Sep 28, 6:46 AM PDT · 16430 days ago · 28 km deep · 18 km away
36. 1.530 km SSW of Ferndale, CaliforniaMon, Sep 28, 10:03 AM PDT · 16430 days ago · 29 km deep · 10 km away
37. 2.511 km SE of Blue Lake, CaliforniaTue, Sep 29, 8:30 AM PDT · 16429 days ago · 25 km deep · 60 km away
38. 2.511 km SSE of Blue Lake, CaliforniaTue, Sep 29, 8:50 AM PDT · 16429 days ago · 26 km deep · 59 km away
39. 1.838 km W of Ferndale, CaliforniaWed, Sep 30, 3:34 AM PDT · 16429 days ago · 20 km deep · 35 km away
40. 2.239 km SW of Ferndale, CaliforniaThu, Oct 1, 4:28 AM PDT · 16427 days ago · 29 km deep · 20 km away
41. 2.6off the coast of Northern CaliforniaThu, Oct 1, 5:11 AM PDT · 16427 days ago · 4 km deep · 99 km away
42. 2.037 km SW of Ferndale, CaliforniaFri, Oct 2, 4:06 AM PDT · 16426 days ago · 32 km deep · 17 km away
43. 2.138 km SW of Ferndale, CaliforniaFri, Oct 2, 6:31 AM PDT · 16426 days ago · 27 km deep · 17 km away
44. 1.83 km S of Humboldt Hill, CaliforniaSat, Oct 3, 1:59 AM PDT · 16426 days ago · 17 km deep · 36 km away
45. 2.356 km W of Indianola, CaliforniaSat, Oct 3, 2:36 AM PDT · 16426 days ago · 24 km deep · 59 km away
46. 2.52 km NE of Redway, CaliforniaSat, Oct 3, 5:56 AM PDT · 16425 days ago · 19 km deep · 59 km away
47. 2.822 km WSW of Weott, CaliforniaSat, Oct 3, 9:46 AM PDT · 16425 days ago · 7 km deep · 28 km away
48. 2.034 km SW of Ferndale, CaliforniaSat, Oct 3, 5:10 PM PDT · 16425 days ago · 27 km deep · 17 km away
49. 2.14 km SW of Big Lagoon, CaliforniaSun, Oct 4, 3:02 AM PDT · 16425 days ago · 13 km deep · 82 km away
50. 1.65 km S of Ferndale, CaliforniaSun, Oct 4, 4:36 AM PDT · 16424 days ago · 26 km deep · 18 km away
51. 1.925 km SSW of Ferndale, CASun, Oct 4, 4:31 PM PDT · 16424 days ago · 15 km deep · 5 km away
52. 2.475 km W of Indianola, CaliforniaSun, Oct 4, 6:28 PM PDT · 16424 days ago · 7 km deep · 74 km away
53. 1.540 km SW of Ferndale, CaliforniaSun, Oct 4, 6:39 PM PDT · 16424 days ago · 30 km deep · 22 km away
54. 1.534 km SW of Ferndale, CaliforniaSun, Oct 4, 7:08 PM PDT · 16424 days ago · 34 km deep · 13 km away
55. 2.714 km WSW of Scotia, CaliforniaMon, Oct 5, 4:40 AM PDT · 16423 days ago · 28 km deep · 11 km away
56. 1.636 km SW of Ferndale, CaliforniaMon, Oct 5, 2:45 PM PDT · 16423 days ago · 34 km deep · 15 km away
57. 3.337 km SW of Ferndale, CaliforniaMon, Oct 5, 3:18 PM PDT · 16423 days ago · 25 km deep · 17 km away
58. 1.837 km SW of Ferndale, CaliforniaMon, Oct 5, 3:28 PM PDT · 16423 days ago · 23 km deep · 16 km away
59. 1.738 km SW of Ferndale, CaliforniaMon, Oct 5, 4:41 PM PDT · 16423 days ago · 23 km deep · 17 km away
60. 2.376 km WSW of Ferndale, CaliforniaMon, Oct 5, 7:11 PM PDT · 16423 days ago · 4 km deep · 64 km away

The first 60 of 200.

From the USGS Earthquake Hazards Program and its partner networks, event nc1067669. Read Tue, Sep 22, 2026, 10:26 PM UTC.